code: def check_forward(self, xs_data):
      xs = [chainer.Variable(x) for x in xs_data]
      ys = functions.transpose_sequence(xs)
      self.assertEqual(len(ys), len(self.trans_lengths))
      for y, l in zip(ys, self.trans_lengths):
          self.assertEqual(len(y.data), l)
  
      for i, l in enumerate(self.trans_lengths):
          for j in six.moves.range(l):
              testing.assert_allclose(ys[i].data[j], self.xs[j][i])
  
file_path: chainer/tests/chainer_tests/functions_tests/array_tests/test_transpose_sequence.py
imports: import unittest
  import numpy
  import six
  import chainer
  from chainer.backends import cuda
  from chainer import functions
  from chainer import gradient_check
  from chainer import testing
  from chainer.testing import attr
label_desc: Use image node_id 2 for calling the TestTransposeSequence obj's underlying member method code with example usage: obj.check_forward(xs_data) without return types